REYNOLDSVILLE — Authorities are blaming a snow squall for a 21-car pileup that closed Interstate 80 in Western Pennsylvania for about eight hours.

The eastbound lanes reopened late Monday night after crews cleaned up the crash involving six tractor-trailers and 15 other vehicles in Washington Township, Jefferson County.

Seventeen people were reported injured. State police say several of those injured were in serious condition.

Jefferson County Emergency Management Director Tracy Zents tells WJAC-TV a tanker carrying liquid nitrogen was involved in the crash but no spill occurred.

Emergency officials reported a number of other, smaller weather-related crashes.

KENNERDELL — A friendly neighbor helped save a Western Pennsylvania dog from a house fire by performing mouth-to-mouth resuscitation on the animal.On Monday, the 3-year-old black lab and husky mixed dog was overcome by smoke on Saturday at a fire in Kennerdell, about 80 miles north of Pittsburgh.The newspaper says that a boy and his mother pulled the pet out of the smoke-filled home, but it was unresponsive until a woman who lived nearby held the dog’s nose and employed mouth-to-mouth resuscitation.Joe Santucci, another neighbor, tells the paper that the dog was taken to an animal clinic and was discharged Sunday in good condition.